I'm a bit miffed as to what are the ruling on the followings :

I have entered the kingdom on 24 April 2013, have renewed my retirements permit

on the following month 12th of May, I will be traveling overseas on the 8th of August

2013,

my question is, do I still have to do the 3 months report on the 24th July

or now I should look at the 12th of may as my starting date? if this is the case

than I should be ok for the 8th August trip...

Are you on an extension of stay or not and if so, was it your first extension of stay.

If you leave the coutnry every 90 days you do not make a 90 day report.

Renewing your permit doesn't change your 90 day stuff it's July.

Unless this was your first extension of stay (and from timing it does not appear to be) your 90 day report is due 90 days from entry (entry being day one). Only the first extension of stay is accepted as a 90 day address report (no TM.47 required).

Unless you have a multiple entry visa I think you will need a Re-Entry Permit, 1000 Baht and 3,800 Baht for multiple.